Geoege heney smith



-No. 752,714. PATENTED FEB. 23, 1904..

I G, H. SMITH. y BED FASTENING FOR HORIZONTAL SPINDLE DRILLING ANDBORING MACHINES. APPLICATION 211.121) my 5, 1903.

H0 MODEL.

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No. 752,714. Patented February 23, 1904.

UNITED STATES PATENT OFFICE.

GEORGE HENRY SMITH, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO THE BEAMAN& SMITH COMPANY, OF PROVIDENCE, RHODE ISLAND, A CORPORATION.

BED-FASTENING FOR HORIZONTALSPINDLE DRILLING AND BORING MACHINES.

SPECIFICATION forming part of Letters Patent N0. 752,714, a e February23, 1904.

Application filed May 5, 1903. Serial No- 156,1S2. (No model.)

To whom it y 00711667711! C is a round shaft or key made in one or Beitknown thatI, GEORGE HENRY SMITH, a more pieces, which is adapted torest in the citizen of the United States, residing at Provisaid groovesor recesses a and Z), thereby form' dence, in the county of Providenceand State ing a joint about which the bed and platen of Rhode Island,have invented certain new take their positions. The bed and platen are 5and useful Improvements in Bed-Fastenings each provided with a line ofscrew-threaded for orizontal Spindle Drilling and Boring openings OZ atthe top and bottom, in which Machines; and I do declare the following tobe are the screw-threaded bolts D.

a full, clear. and exact description of the in- The recesses or groovesa. and b and the vention, such as will enable others skilled in shaft orkey C and the screw-threaded bolts 55 the art to which it appertains tomake and use D form a rigid joint or fastening between the the same,reference being bad to the accompabed and platen, which through theloosening nying drawings, and to the letters of reference of one line ofbolts and the tightening of the marked thereon, which form a part ofthis other line of bolts will cause the bed and platen I 5specification. to assume a new position about the shaft or 60 Myinvention relates to improvements in key C, thus allowing an adjustmentof the horizontal spindle drilling and boring marelative position of thebed and platen to corchines; and it consists of a means for attachrectany diiference in the alinement of the ing the platen or work-table tothe bed by an platen A and the spindle of the machine, the

adjustable arrangement capable of a rigid fasspindle being dependent onthe bed for its po- 5 tening, yet designed to allow of slightmovesition, while the platen is operated by my dement upward or downwardat the point where vice'herein described to adjust the work into theplaten is secured to the bed to bring the proper and true position withthe spindle. platen exactly in line with the spindle when Having thusdescribed my invention, what 2 5 the machine is assembled or as futurechanges I claim, and desire to secure by Letters Pat- 7 in the machineare necessary, due to the setcut, is tling of the foundation, or thewear of the In amachine of the character described, the parts of themachine may require. The asccimbination, with the bed and platen, eachsembled machine ready for work rests upon having a groove formed in itsabutting face,

the floor or foundation prepared for it, to a shaft or key secured insaid grooves and a 75 which it is bolted at the outer extremities ofseries of screws or bolts, one set of bolts bethe bed and platen. ingabove and the other set below the said The operation of my inventionwill be more shaft or key, whereby the loosening of one clearly seenfrom the following additionaldeset of the screws and the tightening ofthe 3 5 scription and the drawing, which is a detail others, will adjustthe relative position of the 80 section of the platen and bed of themachine, platen and bed around said shaft.

the parts being cut away. In testimony whereof I affix my signature inIn the drawing, the letter A represents the presence of two Witnesses.platen.

40 B is the bed of the machine. GEORGE HENRY SMITH. a is a groove orrecess formed in the side of l I the platen, and b is a similar recessor groove Witnesses: formed in the side of the bed, both being in ELMERA. BEAMAN, alinement with each other when the bed and D. A. BUFFINGTON.platen are assembled.

